2018—2020年某医院介入放射工作人员外照射个人剂量监测结果分析

目的 分析2018—2020年北京某三甲综合医院介入放射工作人员外照射个人剂量监测结果，为保障工作人员健康和医院放射防护管理提供依据。方法 选取北京市某医院321名介入放射工作人员作为研究对象，收集2018—2020年介入工作类型、岗位、个人剂量监测结果等信息，用SPSS 22.0对个人剂量监测结果进行分析。结果 2018—2020年每年有效监测率分别为78.82%、81.65%和96.85%，呈上升趋势(χ²趋势=16.134,P <0.001)；人均年剂量当量分别为0.142 mSv、0.142 mSv和0.265 mSv,2020年人均年有效剂量高于2018年(H=24.562,P <0.001)和2019年(H=39.378,P <0.001)，差异有统计学意义；2020年人均年有效剂量介入临床医生组>介入护理人员>技师组(H=10.699、6.562,P <0.01);2020年心内科介入医生个人年剂量监测结果高于综合介入、神经介入、血管外科3个科室(H=35.530、37.614、35.496,P <0.001...

Analysis of external exposure dose monitoring results of interventional radiology staff in a hospital from 2018 to 2020

Objective To analyze the monitoring results of external exposure dose of interventional radiology staff in a tertiary general hospital in Beijing, China, 2018—2020, and to provide a basis for safe guarding staff health and hospital radiation protection management. Methods A total of 321 interventional radiology staff in a hospital in Beijing were selected to collect information on the types of interventional work, positions, and personal dose monitoring results in 2018—2020. The dose monitoring results were analyzed using SPSS 22.0. Results The effective monitoring rate for the three years was 78.82%, 81.65%, and 96.85%, respectively, showing an increasing trend (χ² _trend = 16.134, P < 0.001). The annual dose equivalent per capita was 0.142, 0.142, and 0.265 mSv, respectively. The annual dose equivalent per capita in 2020 was significantly higher than those in 2018 (H = 24.562, P < 0.001) and 2019 (H = 39.378, P < 0.001). The annual dose equivalent per capita in 2020 was in the order of interventional clinician > interventional nurse > technician (H = 10.699, 6.562, P < 0.01). The annual dose equivalent per capitain 2020 was higher in the cardiology interventional department than in the comprehensive interventional, neuro interventional, and vascular surgery departments (H = 35.530, 37.614, 35.496, P < 0.001). Conclusion The number of interventional radiology staff monitored from 2018 to 2020 increased year by year, so did the effective monitoring rate.The external exposure dose was at low levels, which generally meets the requirements of national occupational exposure limits. Training on radiation protection for interventional radiology staff should be further strengthened to raise awareness of radiation protection.